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Flap Valves

AllPipe supply Althon Limited’s range of circular flap valves for water outlets, suitable for pipe diameters up to 300mm / 12”, with a design life of 50 years at 1Mwc and 72 hours at 5Mwc.

Circular flap valves are typically installed above the water level on a pipe outlet to prevent back-flow up the pipe during flooding or heavy rain, and can be reinforced with stainless steel if necessary.


If you require a flap valve for a pipe diameter larger than 300mm / 12", please visit https://www.althon.co.uk/products/circular-flap-valves/, or call 01603 488700.